Sides of the Earthfill Borrow Area excavation (±3 m deep) are vertical and not sloped as requested by the Engineer on 19/11/2018, before the deep excavations started (refer to Photograph 1).  The TLB travels and stands directly adjacent to the vertical edge while excavating and also places excavated material directly adjacent to the vertical edge (refer to Photograph 2).  The material is a sandy soil which not densely compacted, thus the risk for a slope failure is high, especially in the area where the TLB travels and stands to excavate.    Contractor was requested to slope sides in the safest manner possible before continuing with excavations.
Hazard category: Unsafe excavations